Can you solve this real interview question? Find All Duplicates in an Array - Given an integer array nums of length n where all the integers of nums are in the range [1, n] and each integer appears at most twice, return an array of all the integers that
= i+1 时,就将位置 i 和 a[i]-1 上的两个值交换,反之则 i 移动到下一位。 当a[i] == a[a[i]-1]时,表示 a[i] 有重复,记录重复数字,并把下标 i 上的数字置为 0。 当i 上的数字是 0 时,i++ 遍历到数组末尾,结束🔚 时间复杂度:O(n),空间复杂度:O(1) funcfindDuplicates(nums []...
[leetcode] 442. Find All Duplicates in an Array 样例: Input: Output: 在数组中找出所有重复出现的数,要求时间复杂度O(n),空间复杂度O(1) 直接贴支持率最高的代码 我的代码: 利用数组输入的特点 1<=a(n)<=n,则可以直接利用原数组当hash表用。因为原数组都是正数,标为负数表示出现过,就可以找出...
publicList<Integer> findDuplicates(int[] nums) { List<Integer> result =newArrayList<Integer>();if(nums ==null)returnresult;for(inti=0; i<nums.length; i++){intlocation =Math.abs(nums[i])-1;if(nums[location] < 0){ result.add(Math.abs(nums[i])); }else{ nums[location]= -nums[lo...
leetcode-442.Find All Duplicates in an Array 题目Given an array of integers, 1 ≤ a[i] ≤ n (n = size of array), some elements appear twice and others appear once. Find all the elements that appear twice in this array. Could you do it without......
问题描述: Given an array of integers where 1 ≤ a[i] ≤ n (n = size of array),some elements appear twice and others appear once. Find all the elements of [1, n] inclusive that do not appear in this ar... 查看原文 leetcode之Find All Duplicates in an Array 问题 问题描述: ...
Can you solve this real interview question? Find Common Characters - Given a string array words, return an array of all characters that show up in all strings within the words (including duplicates). You may return the answer in any order. Example 1:
0025-reverse-nodes-in-k-group.py 0026-remove-duplicates-from-sorted-array.py 0027-remove-element.py 0028-find-the-index-of-the-first-occurrence-in-a-string.py 0033-search-in-rotated-sorted-array.py 0034-find-first-and-last-position-of-element-in-sorted-array.py 00...
与[LeetCode]Find All Numbers Disappeared in an Array几乎一样,不同之处就是找出twice的数。那么我们只要当nums[i]!=i+1时,然后又当nums[nums[i]-1]==nums[i]时,把nums[i]放入set即可。
0381-Insert-Delete-GetRandom-O(1)-Duplicates-allowed 0382-Linked-List-Random-Node 0384-Shuffle-an-Array 0386-Lexicographical-Numbers 0387-First-Unique-Character-in-a-String 0388-Longest-Absolute-File-Path 0389-Find-the-Difference 0390-Elimination-Game 0391-Perfect-Rectangle 0392-...